A 12500 kg railroad car travels alone on a level frictionless track with a constant speed of 17.0 m/s. a 5800 kg load, initially at rest, is dropped onto the car. what will be the car's new speed?

What would happen to the moon if the earth stopped exerting the force of gravity onto it?

How does the inorganic portion of soil form

What is a strenght of a force measured in

What is the change all living things undergo as the grow

A toroidal inductor has a circular cross-section of radius a a. The toroid has N turns and radius R. The toroid is narrow (a≪R), so the magnetic field inside the toroid can be considered to be uniform in magnitude.

2. How is frequency described in mathematical terms?

During a summer with little rainfall, your house on a hill slope experiences an interval during which your well runs dry. You have to borrow water from your neighbor who lives downslope from you. Why does your neighbor have water when you don't?

If a force does not act parallel to the resulting displacement, what is the effect on the work done by the force?

A stick is a connection of two same - diameter metal rod 5 cm, and a length of both stick is 0,6m. The thermal conductivity of the first rod 92 cal / s. m.°C, and the second stick 50 cal / s. m.°C.

you can produce a sound by plucking a string or by blowing in a pipe. how are these two ways different?